Briqueting ore concentrates.



- C. E. HERRMANN.

BRIQUETING ORE CONCENTRATES.

APPLICATION FILED APR-22. I911.

Patented Sept. 28, 1915.

4 SHEETS-SHEET I.

Fig. l

' l/VI/f/VTOI? afiar/es E rmann C. E. HEHRMANN.

BRIQUETING ORE CONCENTRATES.

APPLICATION FILED APR.22. 1911.

1 ,1 55,3 1 1. Patented Sept. 28, 1915.

4 SHEETSSHEET 2.

Fig. 2-

WITNESSES l/VVEIVTOH C. E. HERRMANN.

BRIQUETING ORE CONCENTRATES.

APPLICATION FILED APR. 22. 1911.

Patented Sept. 28, 1915.

4 SHEET$SHEET 3- v j sstllllllll'lllllllllllf @U E Fig: 5-

i \1 z fi 4 36 Q 34 WITNESSES [MENTOR mar/es E15? mm. f g r 7% l, 1 55,3 1 1. Patented Sept. 28, 1915.

4 SHEETS-SHEET 4.

Fi 6. II. v [45 L 1 43 f 42 5 1 n n 4 TH u w) u w u :l

C. E. HERRMANN.

BRIQUETING ORE CONCENTRATES.

APPLICATION FILED APR. 22, 1911.

WITNESSES 8 fi 1a 4 18/ l/Vl/EIVTOI? CZar/es BM "i 7 ATTORNEY.

After passingthrough the kilns the cars are i transferred along the track 15. The briquets may beunloaded from the kiln cars and transferred,for instance, to any line of transportation, as for instance, on the track 16. The empty kiln cars are brought back to position for reloading by passing around on the track 17. The empty molds are pickedup by a suitable hoist and telpher system operating on the overhead tracks 18;

The molds are deposited from the telpher on :the tracks 19 and transferred around to the filling station ##2. For the purpose of filling the mold boxes each box in turn is passed beneath-the feed box 20. In Figs. 2 and 3 I have shown details of the mechaxnismfor filling the mold box. The wet concentrates from the chute or conveyer 3 are deposited in the feed box 204 A series of scrapers such as 21, 21 arranged preferably at an angle as shown in Fig. 3 are carried by a. chain 'or carrier 22.- This carrier extends around the pulleys or drums 23 and 241on the shafts-25 and 26 respectively. Any number of these chains or carriers may be provided and I have'show-n two in Fig. 3. The .shaft 25 is rotated by any suitable -means in one direction so as to move the 801111361821, 21 to one end of the mold box. The shaft 25 is then reversed and the scrap ers move to the opposite end of the mold box; This action is continueduntil the 0on c'entrates' 'ha-ve been evenly distributed over 7 the surface of the mold box. The mold box is then pushed out of theway by a following mold box so that the operation of filling.

can be continuous. lIII' FIgS. 4 and 5 I have shown a press for compressing the wet concentrates in the,

moldjbox. The mold box has a large number of compartments such as 30 formed by suitable partitions. The size of these compartments is determinedby the size of the briquets desired, the compartments being somewhat deeper than the desired briquet in order to hold enoughmaterial so that when the material is compressedthe ,briquets will be of the desired size. The compartments are preferably *laid outalong diagonal lines 'as shown -'in Fig. 5, The head 31 of the press is carried by a suitable plunger 32 r in a suitable guide frame 33 supported by suitable supports 34. The head 31 carries a number of plungers such as 35 to correspond in size and location with the compartments'30 in the mold box. In order to in sure a tight joint between the mold box 1 and the floor 5 beneath the press, I preferably mount the sections of thetrack' '36 which areinside the limits of the press so that they may be depressed'as for instance,

bythe cams 37; 37. "When the press'is to be operated'the cams are operated so as to depress the sections 36 of the track and per.- mittheinqld box to besupported wholly by the floor 5. The head of the press being forced downward by hydrauhc or other pressure, compresses the wet concentrates in .the c0mpartments'30 and drives out the excess of water. After the briquets have thusbeen compressed the cams 37, 37 are operated to lift the section 36 of the track back to the level of. the main portion 4. The

mold box is thereupon moved toward the right with its load of briquets and another mold box moves into position for-the compression of the contents.

" In Figs. 6 and 7 are shown details of the mechanism for removing the briquets from the mold box and placing them 'in layers on the kilnrcars. The track 4 extends over the track 10011 which the kiln car 9 rests. The

platform" 5 terminates just to the left of the position of"the kiln cars shown in Fig. 6.

The ,briquets which have. been formed by the action of the press adhere in the mold so thatthe mold box can be moved out over the top of theiziln car withoutthe use of any floor or platform beneath-the 'briquets. A

part ofthe track 10 is mounted upon a movable platform 40 which is supported by the piston of plunger'41J The kiln'car is then raised by the action of the plunger 41 until the top of'thecar touchesthe bottom of the mold box. Apparatus is then brought into play to remove the mold box and leave the briquets on the kiln car.' i A rod 42 is arranged on each side of a mold-box 1 at the loading station. These'rods are adapted to be placed beneath the hooks 43, 43 on the sides of the mold box. The rods'are carried by a suitable form of hoist such as chains 44-, connected to'drum" 45. A series of plungers such as 46. similar tothe plunger 35 in the press of Fig. 4 are carried by a head 47 and adapted to be let down into the top of the mold box until the plungers rest upon the top of the briquets. These-plungers are then held in position while the hoist .is operated to lift the mold box and strip it from the .briquets which then rest upon the top of the kiln car. The hoist is then moved along the track 18 shown in Fig.

.1 to deposit the mold box on the track 19 and another mold box is brought :over into position. VVhile the new mold box is being brought into position, the platform 40 and the kiln car 9 are depressed and partially be employed to hold the head elevated. The details of construction have not been fully illustrated'herein and the right to claim the apparatus is reserved for other applications. 1 The particular advantages of the invention are that the process enables me to handle concentrates having a high percentage of Water, the installation for a plant of given capacity is relatively inexpensive compared to the old methods, the plant is more compact and requires less ground area, the cost of operation is less'and the output of the kilns is increased, andthe quality of the product improved.

What I claim is 1. The process of forming briquets from Wet ore concentrates Which comprises charging the ore concentrates into a bottomless mold box having a plurality of compartments While said mold box is over a support forming a temporary bottom to the mold, transferring the charged bottomless mold to a discharging station, positioning a kiln car beneath the mold box at the discharging station to form a bottom to the mold, ejecting the briquets from the mold compartments directly onto the kiln car and moving said kiln car Without disturbing the briquets deposited thereon into a kiln for firing the briquets.

2. The improvement in the art of forming briquets from Wet ore concentrates which comprises charging the Wet concentrates having at least 20% of Water into a multiple compartment mold, removing. the excess Water from the concentrates so as to form individual briquets in the mold, separating the mold from the briquets and leaving the briquets in spaced apart relation, then transporting and heating the briquets While in said spaced apart relation.

8. The improvement in the art offorming briquets from Wet ore concentrates, which comprise filling the wet ore concentrates into a bottomless mold having a large number of compartments While said mold is over a sta tionary floor Which temporarily forms a bottom to the mold, compressing the concentrates in the compartments of the mold while the mold is over a stationary floor forming a temporary bottom to the mold to remove surplus liquid and compact the concentrates into briquets,,bringing the mold with its contents over a kiln car and so relating the mold and the car that thecar Will constitute a bottom to the mold, discharging the briquets from the mold directly onto the kiln car and moving the kiln car Without disturbing the briquets deposited thereon into a kiln for firing the briquets.

4. Apparatus for forming briquets comprising a mold box having a plurality of compartments and arranged for travel from a filling station to a press, means for filling the mold box, a multiple headed press,stripping plunger-s, akiln car adapted for placement beneath the stripping plungers, means forming a bottom to the mold box in its passage from the filling means to the press and up to the point ofentry beneath the stripping plungers whereby displacement of the contents of the mold box will be prevented up to the time the mold box passes beneath the stripping plungers and means operating the stripping plungers to strip the unsupported briquets in the mold compartments onto the kiln car.

5. Apparatus for forming briquets from Wet ore concentrates comprising the combination of a feed-box, a press having a multiple headed press member, an ejecting member having corresponding plungers, a kiln car and track beneath said ejecting member,

a multiple compartment mold box, a platform running beneath the feed box and the press member and forming a floor for the mold box, a track for the mold box running beneath the ejecting member and a hoist for lifting the mold boxfrom the briquets.

6. Apparatus for forming briquets comprising a mold box having a plurality of compartments, a stationary fioor, means for filling the mold box, a track for the mold box, a multiple headed press, said floor and track leading from the filling means to and beyond said press, a kiln car and a track therefor intersecting the line of said mold box track at a point beyond the press and stripping plungers and lifting mechanism for the mold box located at said point of intersection. I

7. The improvement in the art of forming briquets from Wet ore concentrates, which comprises depositing the Wet ore concentrates at a loading station in a mold box having a plurality of compartments, compressing the concentrates in the compartments of the mold box to thereby remove surplus liquid and form the concentrates into briquets, ejecting all of the briquets simultaneously from the mold box onto the kiln car, and returning the stripped mold box back to the loading station.

8. Apparatus for forming briquets, comprising in combination, a bottomless mold box having a plurality of compartments, means for filling the mold box, means for ejecting the briquets from the mold compartments, a platform extending from the mold filling means to the ejecting means, forming a floor for the mold box in its passage from the filling means to the ejecting means, a trackway extending beneath the ejecting meansand a kiln car traveling on said trackway and arranged to receive the briquets ejected from the compartments of thebottomless mold.

9, The improvement in the art of. forming briquets from Wet ore concentrates which comprises charging the Wet concentrates into a multiple compartment mold, removing the V excess Water from the concentrates to thereby form individual briquets in the mold, moving the mold and briquet to anew position, separating the mold from the briqnets While supporting the 'briquets' on a kiln car, then transporting the briquets in their position as originally deposited on saic kiln car into it kiln and heating the briquets whilein the position as originally deposited on the kiln car. r Y

' 10. Apparatus for forming 'briquets comprising a multiple compartment mold, means Copies of this patent may be obtainedifor for fillingfsaid mold, meensforremov ing eXc ess water from the Injtterial in the mold, means for separating the 'mold from the briquets, a kiln, e traekwey extending. from beneath said mold separating means into sa d kiln and a kiln car on sand \trackWay traveling from the point-beneath E. BRADFORD.

five cents each, by addressing the Commissioner of Patents, I Washington, D. G. V e 

